EP0991881B1 - Steuerungsverfahren zum schalten eines automatikgetriebes - Google Patents
Steuerungsverfahren zum schalten eines automatikgetriebes Download PDFInfo
- Publication number
- EP0991881B1 EP0991881B1 EP98933732A EP98933732A EP0991881B1 EP 0991881 B1 EP0991881 B1 EP 0991881B1 EP 98933732 A EP98933732 A EP 98933732A EP 98933732 A EP98933732 A EP 98933732A EP 0991881 B1 EP0991881 B1 EP 0991881B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- delay
- gear
- blocking
- pap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 20
- 230000005540 biological transmission Effects 0.000 title claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 35
- 230000006870 function Effects 0.000 claims description 30
- 230000001133 acceleration Effects 0.000 claims description 20
- 239000000446 fuel Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
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- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 235000001954 papillon Nutrition 0.000 description 4
- 244000229285 papillon Species 0.000 description 4
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- 229940082150 encore Drugs 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/10—Controlling shift hysteresis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
- B60W2050/0057—Frequency analysis, spectral techniques or transforms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H2061/0075—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by a particular control method
- F16H2061/0081—Fuzzy logic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/24—Inputs being a function of torque or torque demand dependent on the throttle opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
- F16H59/48—Inputs being a function of acceleration
Definitions
- the present invention relates to transmissions automatic vehicles with stepped ratios. It relates to more precisely a method of control by blocking and unlocking in fuzzy logic the gear ratios, which improves the driving pleasure of the vehicle as well security, regardless of the conditions of driving or driving encountered (ascent, descent, or dish).
- gear changes are decided according to the speed of the vehicle and the engine load.
- these speed and load criteria are translated in the form of gear change laws, conveniently displayed in the coordinate plane V veh / ⁇ pap , V veh denoting the speed of the vehicle and ⁇ pap the angle of opening of the throttle valve, or more generally, the degree of opening of the regulator of the admission of fuel to the engine.
- the shift N-1 / N that is to say by going from a lower ratio to an immediately higher ratio, is done, for the same engine load or more exactly for the same aperture ⁇ pap , at a speed substantially higher than that at which the corresponding reverse passage takes place N / N-1, that is to say by downshifting.
- the purpose of this arrangement which can be likened to a hysteresis effect, is to avoid an unacceptable tendency to pump between the N-1 and N ratios which would inevitably manifest itself if the uphill and downshift passages were made. under the same speed and load conditions.
- this phase is represented by the oriented segment OA of FIG. 1.
- the right-oriented segment AB which is substantially vertical if the release of the accelerator is fast enough so that the vehicle speed does not have time to drop.
- the segment AB will cross curve 2 at the point represented C in FIG. 1, and the transmission then decides to automatically shift the higher ratio N + 1.
- This change of gear is in most cases completely untimely, and is not desired by the driver, since the engine brake of the vehicle is reduced by switching to the N + 1 gear, while the driver expressly expressed his intention to slow down by quickly lifting your foot.
- this shift changes the driving pleasure, causes a feeling of not having an engine brake, and can sometimes distract the driver, which has an influence on safety.
- the transition to the rising ratio is only authorized if the aperture value ⁇ pap is stabilized.
- the gear is blocked when the operating point in the plane ( ⁇ pap , speed) is below the negative acceleration curve. It is then released when the operating point passes above the increasing opening curve (located slightly above the negative acceleration curve).
- the object of the invention is therefore to provide a method of blocking and unblocking gearbox reports speed of a vehicle equipped with an automatic transmission at tiered reports, allowing to block the report of the transmission (and also to unlock this same report) so efficient, whatever the driving situation.
- the invention also aims to solve the problems of realization inherent in the solution described in the patent FR2545567 cited above.
- the invention relates to a blocking method and unlock reports of a vehicle equipped with a gearbox automatic gears comprising the features of claim 1.
- the invention also relates to a transmission and a motor vehicle implementing the blocking method and unlock reports with characteristics above.
- the functional block 20 determines by a cartographic method as in the ⁇ pap and "speed" plan, the ratio N to be applied to the automatic transmission shown diagrammatically by the block 22.
- the device 21 for blocking and unblocking in fuzzy logic makes it possible to block or not the ratio N, and this, taking into account the additional information: position of the lever and engine speed, respectively from the sensors 4 and 3.
- This same device 21 determines a proposal for a corrected N report, which takes account of the blocking or unblocking conditions, the report information N corrected then being effectively applied to the transmission 22.
- function F3 takes priority over functions F2 and F1, and function F2 takes precedence over to function F1.
- this F1 function is to temporize slightly the rising ratio at the crossing of the passage curve amount N to N + 1, so that the entry conditions in functions F2 and F3 can be analyzed in a way satisfactory, functions F2 and F3 being liable to lead to longer blocking situations.
- the time delay is initialized to a value which depends on the variation in opening of the throttle valve ⁇ pap and possibly on an indicator of the driver driving sportiness.
- UP-DEL-AC takes important values, indicating intention to block the amount ratio.
- this function F3 takes place mainly after having traveled a certain distance, which is calculated by integrating the speed of the vehicle V veh This distance is reset, blocked or current according to the state of deceleration of the vehicle, as shown in figure 6.
- threshold-AC-medium ⁇ UP-DEL-AC ⁇ threshold-AC-high
- the distance is blocked at its value or UP-DEL-GRD> threshold-GRD-low.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Claims (10)
- Steuerverfahren durch Blockieren und Lösen der Übersetzungsverhältnisse eines mit einem automatischen Übersetzungsgetriebe ausgerüsteten Fahrzeuges, dadurch gekennzeichnet, daß es kombiniert Funktionen (F1, F2, F3) aufweist, die aus folgendem bestehen :F1 : Blockieren des Überganges eines Übersetzungsverhältnisses während einer ersten , Warte-Verzögerungszeit (Ta) genannten Verzögerungszeit ;F2 : Blockieren des Überganges dieses Übersetzungsverhältnisses während einer zweiten Verzögerungszeit Tinstable als Antwort auf eine Unstabilität des Öffnungswinkels (αpap) des Drosselventils für die Kraftstoffzufuhr ; undF3 : Blockieren des Überganges dieses Übersetzungsverhältnisses als Antwort auf eine Bremsverzögerung des Fahrzeuges.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es Etappen aufweist, die aus folgendem bestehen :a) beim Schneiden einer Kurve des Übergangs des zunehmenden Übersetzungsverhälnisses (N/N+1), eineWarte-Verzögerungszeit Ta starten während derer das zunehmende Übersetzungsverhältnis blockiert ist;b) während dieser Warte-Verzögerungszeit Ta die Stabilitätsanalyse (ÜP-DEL-GRD) der Öffnung des Regelungsorgans für die Kraftstoffzufuhr zum Motor durchführen;c) wenn besagte Öffnung als stabil betrachtet wird, wird also das zunehmende Übersetzungsverhältnis am Ende der Verzögerungszeit Ta zugelassen , andernfalls wird eine zweite Verzögerungszeit Tinstable gestartet, während der das zunehmende Übersetzungsverhältnis blockiert bleibt;d) Während dieser Verzögerungszeit Tinstable, Bestimmen der tatsächlichen Beschleunigung (γveh) des Fahrzeuges, und wenn das Fahrzeug sich in der sogenannten Bremsverzögerungsphase befindet, Eintritt in eine Blockierungsphase des zunehmenden Übersetzungsverhältnisses, andernfalls am Ende der Verzögerungszeit Tinstable zum zunehmenden Übersetzungsverhältnis übergehen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Stabilitätsanalyse der Öffnung des Regelungsorgans für die Kraftstoffzufuhr zum Motor und der tatsächlichen Beschleunigung (γveh) des Fahrzeugs mit Hilfe der Unschärfelogik durchgeführt werden.
- Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die Verzögerungzeit Tinstable von der Geschwindigkeit der Öffnung des Regelungsorgans für die Kraftstoffzufuhr zum Motor beim Anheben des Fußes und/oder einem für die Sportlichkeit des Fahrers repräsentativen Faktor abhängt.
- Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß; wenn das Fahrzeug in die Bremsverzögerungsphase eingetreten ist, man das laufende blockierte Übersetzungsverhältnis beibehält, solange die Beschleunigung des Fahrzeugs negativ und unterhalb eines vorbestimmten Grenzwertes (Grenzwert-AC-unten) bleibt.
- Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß, sobald die Bremsverzögerung des Fahrzeugs ein gewisses vorbestimmtes Niveau erreicht, die vom Fahrzeug durchlaufene Strecke berechnet wird und das Lösen des Übersetzungsverhältnisses entschieden wird, oder :wenn das Fahrzeug mit einer stabil gebliebenen Öffnung (αpap) des Regelungsorgans für die Kraftstoffzufuhr zum Motor durchlaufen hat , oderwenn der Rotationsleistungsbereich des Motor zu hoch wird, oderwenn die Rückschaltkurve N/N-1 geschnitten wird.
- Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Blockierfunktion (F3) für die Bremsverzögerung prioritär in Bezug auf die Blockierfunktion (F2) für die Unstabilität des Öffnungswinkels (αpap) des Drosselventils ist , welche selber prioritär in Bezug auf die Blockierfunktion (F1) während der Warte-Verzögerungszeit ist.
- Verfahren nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Blockierfunktion (F3) für die Bremsverzögerung einem repräsentativen Wert für die Querbeschleunigung (γt) des Fahrzeuges Rechnung trägt.
- Automatisches Übersetzungsgetriebe mit abgestuften Übersetzungsverhältnissen, insbesondere für Fahrzeuge, dadurch gekennzeichnet, daß sie das Blockierungsverfahren für die Übersetzungsverhältnisse nach irgendeinem der vorangehenden Ansprüche durchführt.
- Fahrzeug, dadurch gekennzeichnet, daß es ein automatisches Übersetzungsgetriebe mit abgestuften Übersetzungsverhältnissen nach Anspruch 9 aufweist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9708324 | 1997-07-02 | ||
| FR9708324A FR2765651B1 (fr) | 1997-07-02 | 1997-07-02 | Procede de commande des changements de rapports d'une transmission automatique |
| PCT/FR1998/001361 WO1999001685A1 (fr) | 1997-07-02 | 1998-06-26 | Procede de commande des changements de rapports d'une transmission automatique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0991881A1 EP0991881A1 (de) | 2000-04-12 |
| EP0991881B1 true EP0991881B1 (de) | 2002-05-29 |
Family
ID=9508730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98933732A Expired - Lifetime EP0991881B1 (de) | 1997-07-02 | 1998-06-26 | Steuerungsverfahren zum schalten eines automatikgetriebes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6459977B1 (de) |
| EP (1) | EP0991881B1 (de) |
| DE (1) | DE69805620T2 (de) |
| FR (1) | FR2765651B1 (de) |
| WO (1) | WO1999001685A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2837254B1 (fr) * | 2002-03-15 | 2004-07-09 | Renault | Procede et dispositifs de controle des passages montants dans une transmission automatique ou automatisee |
| FR2837255B1 (fr) * | 2002-03-15 | 2004-07-09 | Renault | Procede et dispositifs de controle des changements de rapport d'une transmission atomatique ou automatisee |
| FR2841316B1 (fr) | 2002-06-21 | 2005-05-06 | Renault Sa | Procede et dispositifs de commande des changements de rapport d'une transmission automatique ou automatisee |
| FR2847639B1 (fr) * | 2002-11-21 | 2005-02-04 | Renault Sa | Procede de commande d'une transmission automatique d'un vehicule en situation de descente |
| FR2864193B1 (fr) | 2003-12-19 | 2007-04-13 | Renault Sas | Procede et dispositif de controle des changements des rapports des transmissions automatiques |
| DE102005026477A1 (de) * | 2005-06-09 | 2006-12-14 | Zf Friedrichshafen Ag | Signalverarbeitungssystem mit schneller Signalverarbeitung |
| JP4726058B2 (ja) * | 2005-09-22 | 2011-07-20 | 本田技研工業株式会社 | 自動変速制御装置 |
| JP4613225B2 (ja) * | 2008-05-30 | 2011-01-12 | ジヤトコ株式会社 | 無段変速機の制御装置 |
| CN114922967B (zh) * | 2022-04-22 | 2023-10-20 | 一汽奔腾轿车有限公司 | 一种通过延时升挡提升车辆加速响应的控制方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2545567B1 (fr) | 1983-05-02 | 1989-06-30 | Renault | Perfectionnements a la commande de changements de rapport dans une transmission automatique a rapports etages |
| US5097725A (en) * | 1988-07-25 | 1992-03-24 | Mazda Motor Corporation | Shift control system for automatic transmissions |
| DE3922040A1 (de) * | 1989-07-05 | 1991-01-17 | Porsche Ag | Verfahren und vorrichtung zur steuerung eines selbsttaetig schaltenden getriebes |
| JPH0356757A (ja) * | 1989-07-24 | 1991-03-12 | Zexel Corp | 自動変速装置 |
| SE9003318L (sv) * | 1990-10-19 | 1991-11-11 | Saab Automobile | Reglage, arrangemang och foerfarande foer reglering av servoorgan foer motorfordons framfoerande |
| US5401223A (en) * | 1993-08-18 | 1995-03-28 | Cummins Electronics Company, Inc. | Method and device for controlling critical switch failure and neutral conditions at high and low vehicle speeds |
| US5673668A (en) * | 1996-08-05 | 1997-10-07 | Ford Global Technologies, Inc. | Method and apparatus for electronic throttle monitoring |
| FR2765652B1 (fr) * | 1997-07-02 | 1999-09-03 | Renault | Procede de controle des phases de retrogradage des transmissions automatiques |
-
1997
- 1997-07-02 FR FR9708324A patent/FR2765651B1/fr not_active Expired - Lifetime
-
1998
- 1998-06-26 WO PCT/FR1998/001361 patent/WO1999001685A1/fr not_active Ceased
- 1998-06-26 US US09/463,955 patent/US6459977B1/en not_active Expired - Lifetime
- 1998-06-26 EP EP98933732A patent/EP0991881B1/de not_active Expired - Lifetime
- 1998-06-26 DE DE69805620T patent/DE69805620T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2765651B1 (fr) | 1999-09-24 |
| DE69805620D1 (de) | 2002-07-04 |
| US6459977B1 (en) | 2002-10-01 |
| FR2765651A1 (fr) | 1999-01-08 |
| WO1999001685A1 (fr) | 1999-01-14 |
| EP0991881A1 (de) | 2000-04-12 |
| DE69805620T2 (de) | 2002-11-21 |
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